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A simple device constructed from inexpensive components enables spike activity to be integrated and displayed in a convenient scale (spikes/sec) on a pen recorder. An input voltage threshold detection circuit is employed to eliminate any random baseline noise from being integrated. A pulse output is provided to drive a counter or accumulator so that quantitative as well as qualitative results may be obtained. A monostable multivibrator is used to insure that the integrated output is a function of the frequency of spike activity and not the amplitude or pattern of the spikes. An output isolation and buffer stage is provided to eliminate any loading effect on the filter section and also provide a gain or scaling adjustment so that the integrator may be used with practically any pen recorder.
T E Woods, and
N Dafny
January 1976,
Medical & biological engineering,
T E Woods, and
N Dafny
January 1970,
Electroencephalography and clinical neurophysiology,
T E Woods, and
N Dafny
January 1969,
Studii si cercetari de neurologie,
T E Woods, and
N Dafny
January 1979,
Laboratornoe delo,
T E Woods, and
N Dafny
February 1953,
Electroencephalography and clinical neurophysiology,
T E Woods, and
N Dafny
March 1981,
Sheng li ke xue jin zhan [Progress in physiology],
T E Woods, and
N Dafny
June 2013,
Intensive care medicine,
T E Woods, and
N Dafny
January 2019,
Nanoscale advances,
T E Woods, and
N Dafny
February 1967,
Electroencephalography and clinical neurophysiology,
T E Woods, and
N Dafny
January 1992,
Archives of toxicology. Supplement. = Archiv fur Toxikologie. Supplement,
